Precipitated barium sulfate is widely used in friction sealing materials
Barium sulfate is obtained from barite, a mineral rich in barium sulfate, which also contains clay minerals, organic matter and other substances. Pure crystal is colorless and transparent, and it is usually off-white due to impurities. It is chemically stable, insoluble in water and hydrochloric acid, non-magnetic and toxic. The deep processing products of barite expand the scope of application, using the characteristics of moderate hardness and high temperature resistance of barite
Precipitated barium sulfate has been widely used in friction sealing materials, and has become an indispensable inorganic filler in friction materials. The use of precipitated barium sulfate can stabilize the friction coefficient, reduce the wear rate, and the friction surface is smooth and clean.
Precipitating barium sulfate is calcining the barite and coal powder together in a reduction furnace, and then the calcined product is subjected to impurity removal, water immersion and pulping. Pump the slurry into the reaction tank, add Glauber's salt, add steam to heat and stir to accelerate the formation.